如何使用PHP解析JSON文件？

要遍历多维数组，可以使用RecursiveArrayIterator

$jsonIterator = new RecursiveIteratorIterator(    new RecursiveArrayIterator(json_depre($json, TRUE)),    RecursiveIteratorIterator::SELF_FIRST);foreach ($jsonIterator as $key => $val) {    if(is_array($val)) {        echo "$key:n";    } else {        echo "$key => $valn";    }}

输出：

John:status => WaitJennifer:status => ActiveJames:status => Activeage => 56count => 10progress => 0.0029857bad => 0